Improved dies for gutting the teeth of metallic combs



F 4 I m g t tetra gaunt @ffi'rr.

CALEB FOSTER, OF WAPPINGERS FALLS, NEW YORK, ASSIGN OR TO ELIAS BROWN, OF SAME-PLACE.

Letters Patent No. 78,585, dated June 2, 1868.

' IMPROVED mes roe currme THE TEETH or 'MErALLIcooMBs.

tits fitlgehnle ttittttb it in flgrze'firttm ,hgatnrt tut mating part in tip iililllt.

TO ALL WHOM IT MAY CONCERN:

Be it known that I, CALEB FOSTER, of Wappingers Falls, in the countyof Dutchess, and State of New York, have invented a new and useful Improvement in Dies for Cutting the Teeth of Metallic Combs; and I do hereby declarethat the fdllowing is a full, clear, and exact description thereof, which will enable those skilled in ,the art to make and use the same, reference being had to the accompanying drawings, forming part of this specification.

This invention relates to anew and useful improvement in the manufacture of metallic combspf all kinds, more especially those which are generally termed long combs," and are worn by children at the back part of the head.

,The invention consists in them'eans employed for forming the teeth of such combs, said means comprising male and female cutters or dies, and a follower or plunger, all arra-ngedto operate in such a manner that two combs will be formed simultaneously out ofone piece of steel or other metal plate, the teeth ofonecomb being formed by tho -metal which was. included between the spaces of the teeth of the other, the teeth of both combs being perfectlyformed throughout, and properly pointed by one operation. In the accompanying sheet of drawings- I Figuro l is a. side sectional view of my invention taken in the line a x, fig. 2.

Figure 2, a plan or top view of thefemale cutter or die, and plunger or follower.

Figure 3, a side view of the male cutter or die.

Figure 4, a side view of a portion of a cut plate, showing the two sets of teeth of the two combs.

Similar-letters of reference indicate corresponding parts. V

"A represents a male cutter or die, constructed out of a steel plate, and having an edge or face, a, corresponding in form'and areato the teeth to be cut. p

This edge or face of the cutter or die is, when the die is secured in working position, slightly inclined from a horizontal plane, the narrowest end of the face being a trifle the lowest, (see fig. 3,) and the opposite andwidest end of the face has a cutting-lip, b, projecting at right angles from each side of it, but having slightly concave cutting-edges. I l l This male cutter or die is secured in any suitable stock, arranged so as to have a rising and falling jhovement. i v

' B represents the female cutter or die, which has two cutting-edges, c c, with a space between them of sufficient widthto allow the male cutter or die A. to pass snugly downv between them each time it descends, the space between the cutting-edges c 0 corresponding in shape anddimerisions to theface of the male cutter or die.

The female cutter or die, at its narrow end, designated by (1, extends", entirely around, to correspond in shape or form to the points of the teeth of the combs, and the correspondingeud of the face of the male cutter or die A being of similar form. l v I v v The opposite and wider end of the dieB is open, the cutting-edges c c not being connected, as shown in fig. 2. l

The female die is fitted within a. suitable stock, 0, which is secured to a bed by a bolt, e, and within the femaledie there is fitted a follower or plunger, D, which is allowed to work freely up and down, and has a spring, bearing against its lower end, which spring has a tendency to keep the follower or plunger elevated, so that its upper. end will be flush with the cutting-edges c a, (see figfl.) I

The operation is as follows: 7 i

A piece of steel or other metal plate, F, of the proper dimensions, is placed on the female cutter or die R, and each time the male cutter or die A descends, a-tooth, f, is out or punched in the plate F, the follower-or plunger D being forced down within the female die.

As the male die rises, the plunger D,-and consequently the tooth f, is forced upward under the action of the spring E, the tooth j by this means being-forced up out of the female die,.a result which is essential to the operation of the machine, as it admits of the plate F being fed along after-the cutting of each tooth, and during the upward movement of themale outter'or die. n v

' If the teeth are not forced up out'of the female die, it will of course be seen that the plate F cannot-he fed along. I I 1 v s V The plste F is fed along as the male cutter e (li e rises, and at a distance equal to the width of a teeth, so that the spaces between the teeth f, which are punched and forced down into tho female cutter or die, and which are on one comb, will form the teeth f of the other or fellow-comb.

J It will he understohd that the enter ends of the teeth f are pointed in p'roperform at the narrow end.. 0?. of the female cutter or die-B.

The outer ends-of the teethtf' of the other comb are pointed by the cutting-lips 6, one side of the points i of said teeth being acted upon by u lip, 6, as stooth, is. punched, as shown at 1, .fig.'4, and the other half acted upon by the other lip when the succeeding tenth f is punched, us shown nt in the same figl 4.

I am aware that in the manufacture of horn combs two are out simultaneously of; one pieceof horn, the teeth of one comb lasing formed of the material included between tho spaces of the teeth of the other comb;

but in this case cutters ai'e used instead of die s, the teeth being formed by cutting instead ofpunching, and.

two outs being necessary to form each tooth.

The tool,therefore, as well as the mode of, operation, in the manufacture of horn combs, is essentially difierentfrom that described -as my invention. Y

I claim es new, and desire to secure by Letters Patent.-

Thecombination of the male and female dies A B, follower -01 plunger D, spring E or itsequivelent, uml

the cutting-lips b 6 on the male die,'nll-arranged for joint operation, substantially in the manner as and for the.

purpose specified.

CALEB FOSTER.

Witnesses: I

E. M. Gonme, Tnoms STEVENSON: 

